Physics
Physics, 06.05.2021 14:00, 22chandlerlashley

Proszę szybką pomoc pls Zadania energia mechaniczna
1.SAMOCHÓD o masie 3,5 t porusza się z szybkością 72 km/h . Oblicz jego energię kinetyczną
2.Dźwig podnosi ciężar 4 kN na wysokość 3 pięter . Oblicz jego energię potencjalną względem ziemi jeżeli jedno piętro ma wysokość 3,5 m
3.Na jaką wysokość można podnieść ciało o masie 20 dag jeżeli wykonamy pracę 0,005 kJ
4.Długopis o masie 50 g leży na biurku o wysokości 1,5 m . Oblicz jego energię potencjalną względem podłogi i po podniesieniu z biurka na wysokość 30 cm względem podłogi i biurka 5
5.jaką masę ma ciało posiadające energię kinetyczną 5 kJ jeżeli porusza się z prędkością 5 m/s

answer
Answers: 2

Other questions on the subject: Physics

image
Physics, 22.06.2019 04:30, AShevel6767
In a system, when potential energy decreases, then entropy also decreases. true false
Answers: 3
image
Physics, 22.06.2019 10:00, he0gaubong
Which atomic model was proposed as a result of j. j. thomson’s work?
Answers: 1
image
Physics, 22.06.2019 12:20, drewefielder6198
Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.
Answers: 2
image
Physics, 22.06.2019 16:30, makennahudson94
In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution. b.)biological evolution states laws that are part of mendel’s theory of genetics. c.)mendel’s genetics replaced darwin’s entire concept of biological evolution. d.)biological evolution is a law that explains why all genetics exist.
Answers: 1
Do you know the correct answer?
Proszę szybką pomoc pls Zadania energia mechaniczna
1.SAMOCHÓD o masie 3,5 t porusza się z s...

Questions in other subjects: